W DOC AIRBUS | AMM A320F

Installation of the Aft Cargo-Compartment Ventilation-Extraction-Fan

TASK 21-28-54-400-001-A
Installation of the Aft Cargo-Compartment Ventilation-Extraction-Fan

FIN: 35HN ** ON A/C NOT FOR ALL
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 2M (6 FT)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
Torque wrench: range to between 0.38 and 0.28 m.daN (33.63 and 24.78 lbf.in ) T
No specific
Torque wrench: range to between 0.56 and 0.50 m.daN (49.56 and 44.25 lbf.in ) T
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
162DW, 826
 C. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
7
EXTRUDED RUBBER SEAL
AIPC 21-28-04-08-050
7
EXTRUDED RUBBER SEAL
AIPC 21-28-84-03-100
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 21-28-00-720-004-A
Functional Test of the AFT Cargo-Compartment Ventilation-System
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 25-55-12-000-001-A
Removal of the Aft Cargo-Compartment Partition at FR65
TASK 25-55-12-400-001-A
Installation of the Aft Cargo-Compartment Partition at FR65
TASK 52-30-00-860-001-A
Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A
Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-003-A
Open the FWD or Aft Cargo-Compartment Door with the Hand Pump
TASK 52-30-00-860-004-A
Close the FWD or Aft Cargo-Compartment Door with the Hand Pump
F Aft Cargo-Compartment Ventilation Extraction-Fan
3. Job Set-up
Subtask 21-28-54-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the aircraft electrical circuits are energized.
(Ref. AMM TASK 24-41-00-861-002).
   (2) Make sure that aft cargo-compartment door 826 is open (Ref. AMM TASK 52-30-00-860-001) or (Ref. AMM TASK 52-30-00-860-003).
   (3) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position below aft cargo-compartment door 826.
   (4) Make sure that CARGO COMPT LIGHT switch 8LU is set to the ON position.
   (5) Make sure that access panel 162DW is removed (Ref. AMM TASK 25-55-12-000-001).
Subtask 21-28-54-865-051-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR COND/AFT CARGO/VENT/CTL & MONG31HNC07
** ON A/C NOT FOR ALL
49VUAIR COND/AFT CARGO/VENT & HTG/CTL & MONG31HNC07
** ON A/C NOT FOR ALL
122VUAIR COND/AFT CARGO VENT/FAN30HNS22
Subtask 21-28-54-865-064-A ** ON A/C NOT FOR ALL
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR COND/AFT CARGO/VENT/CTL & MONG31HNC07
** ON A/C NOT FOR ALL
49VUAIR COND/AFT CARGO/VENT & HTG/CTL & MONG31HNC07
** ON A/C NOT FOR ALL
122VUAIR COND/AFT CARGO VENT/FAN30HNS22
4. Procedure
Subtask 21-28-54-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Extraction Fan
   (1) Remove the blanking plugs from the extraction fan (6), the sleeve (1) and the duct flange (3).
   (2) Clean the component interfaces and the adjacent area.
   (3) Make sure that the parts retained from the removed component are clean and in the correct condition.
   (4) Make sure that the extruded rubber seal (7) is in a good condition. If necessary replace the AIPC 21-28-04-08-050 EXTRUDED RUBBER SEAL (7) or AIPC 21-28-84-03-100 EXTRUDED RUBBER SEAL (7).
   (5) Put the extruded rubber seal (7), the clamp (8) and the extraction fan (6) in position in the bracket (2).
NOTE: Make sure that:
  • the arrow on the body of the extraction fan (6) points in the direction of the air flow,
  • when you look in the direction of the air flow, the electrical socket on the extraction fan is between the 4 o'clock and the 5 o'clock position,
  • the attach device of the clamp (8) is in the 3 o'clock position,
  • you do not fully tighten the clamp (8) at this time.
   (6) Put the clamp (9) and the sleeve (1) in position on the extraction fan (6).
NOTE: The end of the sleeve (1) must be between the coloured markings on the extraction fan (6).
   (7) Tighten the clamp (9).
   (8) Put the clamp (4) in position on the extraction fan (6) and the duct flange (3).
   (9) TORQUE the clamp (4) to between 0.56 and 0.50 m.daN (49.56 and 44.25 lbf.in ) T.
   (10) Make sure that the clamp (8) is in the correct position.
   (11) TORQUE the clamp (8) to between 0.38 and 0.28 m.daN (33.63 and 24.78 lbf.in ) T.
   (12) Remove the blanking caps from the disconnected electrical connectors.
   (13) Make sure that all the electrical connections are clean and in the correct condition.
   (14) Connect the electrical connector (5).
   (15) Make sure that the work area is clean and clear of tools and other items.
Subtask 21-28-54-865-062-A ** ON A/C NOT FOR ALL
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR COND/AFT CARGO/VENT/CTL & MONG31HNC07
** ON A/C NOT FOR ALL
49VUAIR COND/AFT CARGO/VENT & HTG/CTL & MONG31HNC07
** ON A/C NOT FOR ALL
122VUAIR COND/AFT CARGO VENT/FAN30HNS22
Subtask 21-28-54-720-050-A ** ON A/C NOT FOR ALL
C. Do the functional test of the AFT cargo-compartment ventilation system (Ref. AMM TASK 21-28-00-720-004).
5. Close-up
Subtask 21-28-54-410-050-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install access panel 162DW (Ref. AMM TASK 25-55-12-400-001).
   (3) Remove the access platform(s).
   (4) Set CARGO COMPT LIGHT switch 8LU to the OFF position.
   (5) Close aft cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-002) or (Ref. AMM TASK 52-30-00-860-004).
Subtask 21-28-54-862-050-A ** ON A/C NOT FOR ALL
B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.02 06:11:12 UTC
"WTRUIB" 2025